Abstract
The behavior of silver and lead azides (laminated and filiform crystals, pressed powders) with initiation of their explosive decomposition by a laser pulse is studied. The initiation energy thresholds are measured during irradiation at wavelengths of 1064, 532, 354.7, and 266 nm corresponding to four harmonics of laser radiation. Irradiation is performed under conditions with the sample surface being open or covered with a transparent dielectric (quartz plate) with a pressing force up to 5 · 10 8 N/m 2. Surface covering does not exert any significant effect on the initiation energy threshold in the domain of transparency of the heavy metal azide matrix (first and second radiation harmonics). In the domain of bandgap absorption (fourth harmonic), the initiation threshold strongly depends on the surface conditions (open/covered). The results are discussed from the viewpoint of the influence of the transparent substrate on gas-dynamic unloading of the heat spot, which is formed in the domain of bandgap absorption owing to laser radiation absorption in a thin subsurface layer.
| Original language | English |
|---|---|
| Pages (from-to) | 591-600 |
| Number of pages | 10 |
| Journal | Combustion, Explosion and Shock Waves |
| Volume | 47 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1 Sep 2011 |
Fingerprint
Keywords
- High explosives
- Initiation energy threshold
- Initiation mechanisms
- Laser initiation
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Chemical Engineering(all)
- Chemistry(all)
- Energy Engineering and Power Technology
- Fuel Technology
Cite this
Effect of the laser radiation wavelength on the energy threshold of initiation of heavy metal azides. / Lisitsyn, V. M.; Tsipilev, V. N.; Damamme, G.; Malis, D.
In: Combustion, Explosion and Shock Waves, Vol. 47, No. 5, 01.09.2011, p. 591-600.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of the laser radiation wavelength on the energy threshold of initiation of heavy metal azides
AU - Lisitsyn, V. M.
AU - Tsipilev, V. N.
AU - Damamme, G.
AU - Malis, D.
PY - 2011/9/1
Y1 - 2011/9/1
N2 - The behavior of silver and lead azides (laminated and filiform crystals, pressed powders) with initiation of their explosive decomposition by a laser pulse is studied. The initiation energy thresholds are measured during irradiation at wavelengths of 1064, 532, 354.7, and 266 nm corresponding to four harmonics of laser radiation. Irradiation is performed under conditions with the sample surface being open or covered with a transparent dielectric (quartz plate) with a pressing force up to 5 · 10 8 N/m 2. Surface covering does not exert any significant effect on the initiation energy threshold in the domain of transparency of the heavy metal azide matrix (first and second radiation harmonics). In the domain of bandgap absorption (fourth harmonic), the initiation threshold strongly depends on the surface conditions (open/covered). The results are discussed from the viewpoint of the influence of the transparent substrate on gas-dynamic unloading of the heat spot, which is formed in the domain of bandgap absorption owing to laser radiation absorption in a thin subsurface layer.
AB - The behavior of silver and lead azides (laminated and filiform crystals, pressed powders) with initiation of their explosive decomposition by a laser pulse is studied. The initiation energy thresholds are measured during irradiation at wavelengths of 1064, 532, 354.7, and 266 nm corresponding to four harmonics of laser radiation. Irradiation is performed under conditions with the sample surface being open or covered with a transparent dielectric (quartz plate) with a pressing force up to 5 · 10 8 N/m 2. Surface covering does not exert any significant effect on the initiation energy threshold in the domain of transparency of the heavy metal azide matrix (first and second radiation harmonics). In the domain of bandgap absorption (fourth harmonic), the initiation threshold strongly depends on the surface conditions (open/covered). The results are discussed from the viewpoint of the influence of the transparent substrate on gas-dynamic unloading of the heat spot, which is formed in the domain of bandgap absorption owing to laser radiation absorption in a thin subsurface layer.
KW - High explosives
KW - Initiation energy threshold
KW - Initiation mechanisms
KW - Laser initiation
UR - http://www.scopus.com/inward/record.url?scp=84855816856&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84855816856&partnerID=8YFLogxK
U2 - 10.1134/S0010508211050133
DO - 10.1134/S0010508211050133
M3 - Article
AN - SCOPUS:84855816856
VL - 47
SP - 591
EP - 600
JO - Combustion, Explosion and Shock Waves
JF - Combustion, Explosion and Shock Waves
SN - 0010-5082
IS - 5
ER -